Polishing machine



. 1,570,406 R. F. sALlsBURY POLYISHING MACHINE Filed May 4, 1922 5sheets-sheet 1 Jan. 19 1926.

5 Sheets-Sheet 2 Jail.- 19 1926. y

/Zst 2.

lNvN'roB MA LA7 ATTORNEYS z si i POLISHING MGHINEV Flled May 4, 1922 R.F. SALISBIURY wrrNssszss I Jan. 19 1926. 1,570,406

. R. F. SALISBURY PoLIsHING MACHINE Filed may 4, 1922- 5 shams-sheet sFI'G. 3.

wrmassess yNvvENToR l Jan. 19 1926.

l R. F. SALSBURY PoLIsHING MACHINE 5 sheets-sheet v4,

' INVENTOR Filed May 4, 1922 'wn'nsssss Jan. 19 ,1926. 1,570,406

R.IF. SALISBURY POLISHING MACHINE 5 Sheets-Sheet 5 Filed may 4, 1922INVENTOR VATTORNE'S wrmassass is aspeciication. y p I y This inventionrelates to la butiingo'rA lil Patented Jan. 19, 1926.V

esmas ROBERT FLOYD'.sALIsBImfoF-Nnw v`nmisINemioN, PENNSYLVANIA,fissIGNoR To ALUMINUM COMPANY cnam/marron, OE-JBITTSBURGH,ENNsYLvANImAdeinel PoBATIoN oF PENNsYLVILIN-IA.-v.v` y

@msi-Ime mennen Application mea Meyn, Issa. fs'erialngsla'a," i

vTo'aZZ 10h-0m t may concern:

Beit known that I, Bonner F. SAIJISBURY,

'citizen ofthe United'Statesyand a resident i of `New Kensington, inthecountyA of l/Vest-` l frnorel-and Vand 'State oi Pennsylvania, Vhaveinvented 1a new and useful Im'proveni'entlin Polishing Machines, ofwhich the following polish-ing n'ia'chine for holding articles andpresenting. the same to Va* buiing Wheel, 'and it is yespeciallyV'designed for polishing .metal articles lsuch as 'Cooking utensilsoriother obj-cts of a similar character.. Y

The principal object of the Vinye'ntion is toproyide 'a simple,`vcompact, and V*efficient inachine for vthe purpose 'set forth 'whichis. constantly under the control of theopera."-v

'tor who by 'manipulating control levers pro-YV `vided 'for 'the purposepan shift the sev-eral vparts 'comprisingthe 'apparatus `to cause all ylportions of va, straight," tapered, curved, "or

irregular surface tofbe properly brought intoY Contact With thepolishing or bu'fing Wheel with Which itis used. A K. v Y

special object is yto provide an appai-a-t-us in which the ,l articleoperated upon 'may vbe shifted longitudinally, transversely, orangularly of the anis of the polishing Wheel, in which the 'shifting intheseyeral directions mentioned.mayflbe eliec'ted either'.

response to 'the force exerted by the joperf'` ative upon hand gripped.members 'for ing the several parte.v

till tui-ther objectsar'e i .to provide an" ai ularly a-tljnstablegearhousing' foi' the carrying spindleniountedupon a trans versely'slliftable saddle so' a-sto enable jai-,

li'cl'es oi conical or frustoeconical fornito be inorcie'adily polished,Vandto provideline'ans for pretenties :relative ,www et the Werk carryng spindle vwhen 'the driving gearing is 'dis"conneczyted'thereitrim,y y

it lis also akfspecia'lobject ,toy p'royide an apparatus in Which the'Iii/Ork, holding device 'and theneanslLfor' aotuatiiig. it 'are so "rie-4lated ytoit'lie "buifiiig yvlelfthat Karti@les haw.vingcurvedfvsurfacesmay fbeiniore yreadily` v2polished@than hfa'sbeen/possible with known v "deyiceszfor'such purposes@ ififll."more -rez`tldily Aap,pear l when 'taken in eenlnectio'n" iWitli .Y theV,following vdescriptio'n land Vthe" ltippended jclains Inftlieaccompanying drawings Fig. lfis 'anLendfeleyational yie'iy ofthelprefefr'red A.ernbodiifnen't 4ofthe inye'nti'ni; '2 a 37er.'A

The e auctioneerfebjeetsef' "the invention of fthe "apparatus 'illustrtdin" 1 ;Fig.

diagrammatic illustrating, the relatiye 'positinningv offtheniiaincairiage, or 'slide and the work supporting 'means with relation"to the buiiing- Wheel; l af' frag'- Ineiitaryf sectionall ViewVvillustrating j the cln'tch shifting mechanism (employed, said sectionbeing `taken lon line IVe-IV vof Fig. 2;*Fig. 5 a yiew similar t0 Fig. itaken thefsame 1 la1iey but looking in the direc- V tin fof the 'arrowslll-4V, illiistrating the means4 employed for preventing rotation of theWorkcarrying spindle when the clutch is disconnected from thedrivingvgearing; --f-r '-1. Figo a sectional plan View taken on line Vif-,VL "of2;' Fig. 7 a 'fragmentary' detail -sectional View illustratingfthen1-eeh-V ani'sm emplOyed-or 'shifting the transverselyin'oV'able-saddl'egfand Fig. I8 a'detail View illustrating thek'nfi'eth'o'd"fof mounting the ao-` .tuating lever and `its 'associatedparts, of they mechanism v'shownin Fig. 7 In, the. embodimentillustrated in the v drawings, ldesignt'esga' base plate adapted tobefse'ouite-d'to the ,floorV in" 'any suitable manner, Yas by.k bolting,proI'fid'edvl -i'vitli lateralil guiding` grooves 2,2111 what the heads3 of bolts '41passing-throughop'enings in'thexiiange.;5 y of thepedestalslide for Vthe'pu'rpose 'of ,adjustably Vfixing thepedestal atafn'ydesired distancefroin the b ufiing or polishingayheel ,This adjustmentis ef.-

fe'cted in anMobyiousls'` manner b y looseningthe 'nuts 7, moyingkthelpedestal to the de-` sired location, and Subsequently tightening theSaid mits tebnolthe tiene@ 5to. the l,

plate 1. The buffng wheel W, shown in dotted lines upon the drawings, isof any suitable character for the purpose intended, being rotate-d inthe usual manner .by an actuating apparatus, the end portion of which isindicated at L.

The details of construction of the wheel W and apparatus L do not affectthe present invention, but the relative positioning of the same withrelation to the work holding machineis highly important, for a purposeto be presently described, and Vfor that reason the pedestal is mountedso that the axis of the turn table rotatably mounted thereon is alwaysin the same vertical plane as the wheel WV as clearly shown in F igs. 2and 6, and this isY true regardless of the distance at which thepedestal is positioned fromthe said wheel.

VThe pedestal 6 is provided adjacent its lower end with a spider 8having the bearing boss 9, and at its upper end with an internal flange10 for supporting a roller bearing 11. Journalled in the bearing 11 is asleeve 12 telescopically fitting within a boss 13 depending' from a turntable 14, and fitting within the sleeve 12 is the upper end of a shaft15, the lower end of which is journalled in the bearing boss 9, sleeve12, boss 13, and shaft 15 being rigidly secured together by means of apin 16 passing through the sev-eral parts. The lower portion of the boss13 is enlarged and contains a recess into which an annular flange 17formed o n the pedestal projects. The diameter of the extreme lower endof the boss 13 corresponds to that of the upper end of the pedestal andit is employed as a braking surface coaeting with the inner surface of asplit clamping ring 18 which is attached to the pedestal by means ofbolts 19 eX- tending through an ear 20 formed upon the ring. One of theends 21 of the ring 18 is threaded for the reception of a clamping screwbolt 22 adapted to draw the ends of the ring together and engage thebraking surface of the boss 13 whenever it is desirable to lock the turntable and pedestal against relative movement, and in order to morereadily actuate the bolt 22 the same is equipped with a comparativelylong actuating bar 23.

rlhe upper surface of the turn table 14 has formed thereon an integralguiding dovetail rib 24 upon which a cooperating carriage or slide 25 ismounted for reciprocating sliding` movement, and for facilitatingassemblage of these parts a gib indicated at 26 is used. A rack bar 27is fixed to the bottom surface of the carriage -or slide 25 extendinglongitudinally along its centre and meshing lwith this rack is a spiralpinion or worm 28 attached to the inner `end of an operating shaft 29extending at an angle to the axis of the slide 25, and suitablyjournalled upon the turn table, said shaft being provided with a handwheel 30 at its outer extremity. Rotation of the whe-el 30 causes theslide 25 to reciprocate upon the turn table in an obvious manner, itsdirection of movement depending upon the direction in which the wheel 30is rotated, and in order to limit the extent of movement of the slideany suitable stops may be employed. Attached to one end of the slide 25is a guard 31 which is adapted to cover and protect the upper surface ofthe turn table whenever the slide is moved towards its right, as viewedin Fig. 2. The opposite end of the slide is provided with an integrallyform-ed dovetail guiding' rib 32 which extends transversely to the axisof the slide, preferably at right angles thereto. rThis rib is similarto the rib 24 and has slidingly mounted thereon for reciprocatingmovement a. saddle 33 which in turn carries an angularly adjustable gearhousing 34. The housing 34 is pivotally mounted by means of an aperturedboss 35 formed on its base which fitsl an aperture 36 in the saddle, andthe two are held in operative relation by a bolt 37 having a bar 38 andnut- 39 threaded upon its lower and upper ends respectively, the har 38being prevented from turning by the lug` 40 projecting from the bottomface of the saddle. ln order to furnish access to the several parts thehousing 34 is provided with an opening 41 at one side. After the houshasbeen adjusted to the desired angular position by turning about itspivotal sui,- port, the same may be locked in its adjusted position bybolts 42 threaded into the body of the saddle and extending througharcuate slots 43` Vin the base flange 44 of the housing, as clearlyshown in Fig. 6.

The saddle 33 is adapted to be reciprocated by an operating lever 45 ofspecial 4construction pivoted loosely upon a rocker shaft 46 fittingwithin and supported by a pair of spaced apertured lugs 47 and 48 formedintegrally with and extending from one side of the slide 25. r1 heoperating lever 45 consists of a hollow barrel 49 closed at its outerend by a cap 50 and fixed at its inner end is a collar 51 provided withtwo spaced apertured lugs 52 through which the shaft 46cxtends, thecollar 51 being split at 53 andadapted to be clamped to the barrel 49 bymeans of a bolt 54. Located within the barrel 49 is a plunger 55provided with a nose 56 adapted to engage any one of a series of notches57 of a ratchet 58 keyed to the shaft 46 and disposed between the lugs52. The plunger is normally urged into engagement with the ratchet bymeans of a coiled compression spring 59 disposed between the outer endthereof and the cap 50. For retracting the nose 56 so as to position itin the desired notch 5?' an actuating ring 60 is, provided,

tion to remove a finished article and replace it by anotherl to betreated, it is merely neces-r sary to press the arm against the spring11G sufficiently to effect disengagement of the rib 112 and groove 113,after which the arm may be freely rotated around the Vrod 108 as an axisto any'desired angle.

Vhen the machine is installed the pedestal 6 is adjusted upon the baseplate 1 to the most desirable distance from the wheel W, according tothe character of the work, and is readjusted only as changes in thecharactertf the work demand. The distance between the work supportingmandrel and the back block attached to the head 21 is also adjusted toaccommodate the articles being treated.

In operation, power is constantly applied through the over-head drivingmechanism, previously mentioned, to the shaft which causes rotation ofgear 78 and sleeve 77 through gear 79. By throwing the clutch 84 into orout of engagement with the sleeve 77 by means of lever 92 the workholding spindle 72 may be rotated at will. After the spindle 72 has beenput into rotation, the article supported upon the mandrel may be movedto any desired position within the limits of the machine by rotating thehand wheel 30 to reciprocate the slide of carriage 25 longitudinally ofthe turn table, and by movir-.g the actuating lever 45 to reciprocatethe saddle 33 slidingly mounted for transverse movement upon the slide.Movement of slide 25 enables the operator to bring the desired portionof the article being treated into alignment with the wheel W, whilereciprocation of the saddle 33 enables the same to be brought intocontact or removed from the wheel. Besides these rectilinear movements,due to the pivotal mounting of th-e turn table upon the pedestal, boththe slide 25 and the saddle 33 carried thereby may be rotated about theshaft 15 as an axis by merely shifting the angular position of the partsby moving the hand wheel 30 from side to side. Such rotative movement isparticularly desirable in polishing curved or irregular articles, and bysuitably combining this rotative movement with the rectilinear:movements above described the entire surface of an article may bethoroughly and uniformly treated regardless of its shape. This featureof operation is particularly ef fective due to the fact that the axisofrotation of the tui-'u table is disposed in the same vertical plane asthe polishing wheel, as previously pointed out and as clearly shown in F2 and 6. It is again noted that the rotary movement ofthe turn table andthe reciprocating movement of slide 25 is accomplished by the operatorgrasping but a single actuating element, and that either movement, aswell as the movement of the Sadtlc 33, is `at all times responsive tothe touch of the operator, and entirely inde pendent of mechanicaldevices tending to renderthe machine less sensitive thereto.

In case the articles to be treated are cylindrical in form or'havestraight portions only to be presented to the wheel W, in which case itis unnecessary to rotate the turn table, the turn table may be lockedagainst rotation by tightening the clamping collir 18. The work undersuch setting Will then be brought into contact with the wheel by movingthe saddle transversely of the slide, and its various parts presented tothe Wheel by reciprocating the slide by means of the hand wheel 30.

In case tapered articles Vof conical or frusto-conica-l form are to bepolished, the housing 34C may be angularly adjusted by means of bolts 42and arcuate slots 4,3 to dispose the spindle 7 2 at such an angle thatthe tapered surface is disposed parallel to the aXis of the slide 25 andof the polishing wheel, after which it is merely necessary toreciprocate the parts in the manner set forth above in connection withthe treatment of cylindrical articles.

In many machines of this character, whenever it is necessary to changemandrels on the Work holding spindle, ditliculty is eX- perienced inunscrewing and replacing the same due to the free turning of thespindle. This difficulty is obviated in the presert invention due to theengagement` of lug 83 with the ends of the flange 91 when the clutch issufficiently shifted towards the right, as viewed in Fig. 2.

It is thus seen that the invention provides an apparatus adapted totreat articles of various shapes and sizes, which is simple and compactin construction, effective in operation, in which the main carriage orslide is reciprocated by the same means as are employed by the operativeto rotate the turn table, and in which the several movements of thevarious parts and the pressure exerted between the article treated andthe builing wheel are constantly responsive to the touch of the operatorwhereby to render the apparatus highly sensitive.

lVhile but a single embodiment has been illustrated and described, it isobvious that changes may be made in the exact construction of theseveral parts without departing from the spirit of the invention, and itis, therefore, not intended to limit the invention beyond thatspecically pointed out in the appended claims.

I claim: Y Y Y 1. Ae polishing machine comprising a pedestal, a turntable journalled in said pedcstal, a carriage or slide mountedforreciprocating movement onthe turn table, a saddle on the slideadapted to reciprocate in a plane at an angle to that in which the slidereciprocates, a housing carried by the Saddle and angularly adjustablethereon, and .a

lWork holding spindle journalled `in' said housing.

2. A polishing machine comprising a pedestal, a split clamping ringanchored to the pedestal adjacent its upper end, a turn table rotatablymounted'on the pedestal,.a boss depending from the turn table and pro-Vjee-ting into the said clamping ring, means for moving said ring rvintogripping relation with the said boss, a reciprocating slide carried bythe turn table, a single means for rotating the turn table andreciprocating the.l

slide, a saddle slidingly mounted on the slide for movement transversetothe axis ofV saddle and arm, an operating lever loosely mounted forrocking movement upon said.Y

shaft, and `means' carried by said leverifor selectively loc-king thelever tov the i, said ratchet.V Y Y Y 4. A .polishing machine comprisinga pedestal,y meansfor adjustably supporting the pedestal, a turn tablejournalled on the pedestal, a reciprocating silde mounted on thepedestal, a singlemeans for rotating the turn table and reciprocatingthe slide, a saddle slidingly mounted for movement in an angulardirection to the reciprocating movement of the slide, means constantlyunder the influence of pressure exerted by the operative forreciprocating the said saddle, a gear housing carried by said saddle andangularly adjustable thereon, and a Work holding spindle journalled insaid housing. Y

5. A polishing machine comprising a pedestal, a turn table rotatablymounted on the pedestal, a reciprocating slide carried by the turntable,a single means for rotating the turn table andr reciprocating ktheslide, a saddle slidingly inountedon the slide for movement transverseto the axis of the slide,

a gear housing carried by the saddle, a spindle journalled in saidhousing, gearing mounted'therein for driving saidy spindle, a clutchmember feathered on the said spindle for engaging and disengaging thedriving gear vand spindle, and means for preventing rotaryv movement ofsaid clutch member Whenin disengaged position. I

6 A polishing machine comprising a pedestal, spaced bearings in saidpedestal, a shaft vprovided With a turn table atits 'up-v per endjournalled in said bearings, said turn table having a guiding rib formedthereon, av reciprocating slideV mounted for sliding movement on ksaidrib, a second' guiding rib formedonthe upper Surface ofV the slidey andextendingv yat substantially right angles to the axis, of the slide, asaddle mounted for sliding movementv onl said second named rib, a gearhousing carried by andv angularly adjustable upon the saddle, a lWorkholding spindle journalled in said liousinggearing Within the housingforrotatingthe spindle and a clutch also Within Vthe housing forengaging and disengaging the gearing .and` spindle y Y '7. A polishingmachinecomprising a pedestal, a turn table journalled therein, areciprocating slide mounted on'the turn table, a saddle slidinglymounted on the slide for movement transverse t0 that of thek slide, aWork holding spindle carried by said saddle,

lmeans adapted to support a backing block carried by the saddle and saced from the inner end of saidspindle W ereby an article held betweensaid spindle end and-backing block maybe centered over the vertical axisvof the turn table and'adjusted to varying distancestherefrom. f

In testimony whereof, I sign my'name,V

ROBERT lFLOYD sALisBURY.

